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Unitech/downlink_helltec.ino

Created June 28, 2021 22:28
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  1. Unitech created this gist Jun 28, 2021.
    162 changes: 162 additions & 0 deletions downlink_helltec.ino
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    #include "LoRaWan_APP.h"
    #include "Arduino.h"

    /*
    * set LoraWan_RGB to Active,the RGB active in loraWan
    * RGB red means sending;
    * RGB purple means joined done;
    * RGB blue means RxWindow1;
    * RGB yellow means RxWindow2;
    * RGB green means received done;
    */

    /* OTAA para*/
    uint8_t devEui[] = { 0x22, 0x32, 0x33, 0x00, 0x00, 0x88, 0x88, 0x02 };
    uint8_t appEui[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
    uint8_t appKey[] = { 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x66, 0x01 };

    /* ABP para*/
    uint8_t nwkSKey[] = { 0x15, 0xb1, 0xd0, 0xef, 0xa4, 0x63, 0xdf, 0xbe, 0x3d, 0x11, 0x18, 0x1e, 0x1e, 0xc7, 0xda,0x85 };
    uint8_t appSKey[] = { 0xd7, 0x2c, 0x78, 0x75, 0x8c, 0xdc, 0xca, 0xbf, 0x55, 0xee, 0x4a, 0x77, 0x8d, 0x16, 0xef,0x67 };
    uint32_t devAddr = ( uint32_t )0x007e6ae1;

    /*LoraWan channelsmask, default channels 0-7*/
    uint16_t userChannelsMask[6]={ 0x00FF,0x0000,0x0000,0x0000,0x0000,0x0000 };

    /*LoraWan region, select in arduino IDE tools*/
    LoRaMacRegion_t loraWanRegion = ACTIVE_REGION;

    /*LoraWan Class, Class A and Class C are supported*/
    DeviceClass_t loraWanClass = LORAWAN_CLASS;

    /*the application data transmission duty cycle. value in [ms].*/
    uint32_t appTxDutyCycle = 1000;

    /*OTAA or ABP*/
    bool overTheAirActivation = LORAWAN_NETMODE;

    /*ADR enable*/
    bool loraWanAdr = LORAWAN_ADR;

    /* set LORAWAN_Net_Reserve ON, the node could save the network info to flash, when node reset not need to join again */
    bool keepNet = LORAWAN_NET_RESERVE;

    /* Indicates if the node is sending confirmed or unconfirmed messages */
    bool isTxConfirmed = LORAWAN_UPLINKMODE;

    /* Application port */
    uint8_t appPort = 2;
    /*!
    * Number of trials to transmit the frame, if the LoRaMAC layer did not
    * receive an acknowledgment. The MAC performs a datarate adaptation,
    * according to the LoRaWAN Specification V1.0.2, chapter 18.4, according
    * to the following table:
    *
    * Transmission nb | Data Rate
    * ----------------|-----------
    * 1 (first) | DR
    * 2 | DR
    * 3 | max(DR-1,0)
    * 4 | max(DR-1,0)
    * 5 | max(DR-2,0)
    * 6 | max(DR-2,0)
    * 7 | max(DR-3,0)
    * 8 | max(DR-3,0)
    *
    * Note, that if NbTrials is set to 1 or 2, the MAC will not decrease
    * the datarate, in case the LoRaMAC layer did not receive an acknowledgment
    */
    uint8_t confirmedNbTrials = 4;

    /* Prepares the payload of the frame */
    static void prepareTxFrame( uint8_t port )
    {
    /*appData size is LORAWAN_APP_DATA_MAX_SIZE which is defined in "commissioning.h".
    *appDataSize max value is LORAWAN_APP_DATA_MAX_SIZE.
    *if enabled AT, don't modify LORAWAN_APP_DATA_MAX_SIZE, it may cause system hanging or failure.
    *if disabled AT, LORAWAN_APP_DATA_MAX_SIZE can be modified, the max value is reference to lorawan region and SF.
    *for example, if use REGION_CN470,
    *the max value for different DR can be found in MaxPayloadOfDatarateCN470 refer to DataratesCN470 and BandwidthsCN470 in "RegionCN470.h".
    */
    appDataSize = 4;
    appData[0] = 0x00;
    appData[1] = 0x01;
    appData[2] = 0x02;
    appData[3] = 0x03;
    }

    //downlink data handle function example
    void DownLinkDataHandle(McpsIndication_t *mcpsIndication)
    {
    Serial.printf("+REV DATA:%s,RXSIZE %d,PORT %d\r\n",mcpsIndication->RxSlot?"RXWIN2":"RXWIN1",mcpsIndication->BufferSize,mcpsIndication->Port);
    Serial.print("+REV DATA:");
    for(uint8_t i=0;i<mcpsIndication->BufferSize;i++)
    {
    Serial.printf("%02X",mcpsIndication->Buffer[i]);
    }
    Serial.println();
    uint32_t color=mcpsIndication->Buffer[0]<<16|mcpsIndication->Buffer[1]<<8|mcpsIndication->Buffer[2];
    #if(LoraWan_RGB==1)
    turnOnRGB(color,5000);
    turnOffRGB();
    #endif
    }

    void setup() {
    Serial.begin(115200);
    #if(AT_SUPPORT)
    enableAt();
    #endif
    deviceState = DEVICE_STATE_INIT;
    LoRaWAN.ifskipjoin();
    }

    void loop()
    {
    switch( deviceState )
    {
    case DEVICE_STATE_INIT:
    {
    #if(LORAWAN_DEVEUI_AUTO)
    LoRaWAN.generateDeveuiByChipID();
    #endif
    #if(AT_SUPPORT)
    getDevParam();
    #endif
    printDevParam();
    LoRaWAN.init(loraWanClass,loraWanRegion);
    deviceState = DEVICE_STATE_JOIN;
    break;
    }
    case DEVICE_STATE_JOIN:
    {
    LoRaWAN.join();
    break;
    }
    case DEVICE_STATE_SEND:
    {
    prepareTxFrame( appPort );
    LoRaWAN.send();
    deviceState = DEVICE_STATE_CYCLE;
    break;
    }
    case DEVICE_STATE_CYCLE:
    {
    // Schedule next packet transmission
    txDutyCycleTime = appTxDutyCycle + randr( 0, APP_TX_DUTYCYCLE_RND );
    LoRaWAN.cycle(txDutyCycleTime);
    deviceState = DEVICE_STATE_SLEEP;
    break;
    }
    case DEVICE_STATE_SLEEP:
    {
    LoRaWAN.sleep();
    break;
    }
    default:
    {
    deviceState = DEVICE_STATE_INIT;
    break;
    }
    }
    }